Oracle

(1) Establish B*tree index 3:11:08 sql>create index Emp1_job_ind on EMP1 (Job); (2) Analysis of index structure 3:11:08 sql> ANALYZE INDEX emp1_job_ind VALIDATE STRUCTURE; Index analyzed. (3) View Index storage information 03:11:41 sql> SELECT

First, create a recovery directory 1, the establishment of the table space Create tablespace rc_data datafile '/u01/app/oracle/oradata/ocp/rc_data.dbf ' size 50m; 2, build users Create user RC_OCP identified by RC_OCP default tablespace rc_data

In many cases, database administrators or users need to automatically schedule and run many types of jobs, such as performing maintenance work (such as database backups), data loading and validation routines; Generate reports, collect optimizer

CREATE OR REPLACE PACKAGE body Ebs_trade is -Gets the error message in the database PROCEDURE makeerrormessage (head in Ebsheadobject, Er Rorcode in VARCHAR2, Resbuffer out VARCHAR2) as PRAGMA autonomous_transaction;         Time_end number;

Recently, some programs written as stored procedures, has always wanted to notify me by email, the results of each implementation is correct, on the Internet to find a bit through the Oracle email, a find it, debugging can be used, now recorded, so

The time spent preparing new SQL statements is the most important component of the execution time for Oracle SQL statements. But by understanding the mechanism within Oracle to generate execution plans, you can control the amount of time that Oracle

Oracle 7 v7.2 Recovery outline Author: Andrea Borr & Bill Bridge Version: 1 May 3, 1995 This article provides an overview of how Oracle 7.2 releases database recovery. Readers of this article should be familiar with the Oracle 7.2 Management

One, Shared pool tunning The optimization of shared pool should be prioritized because a cache miss occurs more costly in shared pool than in data buffer because dictionary data is generally more expensive than the library The data in cache is kept

LRU is an important linked list in buffer cache, its function I no longer detailed, already has a lot of relevant information. This is mainly discussed with you the main LRU, auxiliary LRU role. Let's look at a test first. Step 1: Environment

Definition of LOB Like Oracle, a relational database that is better at dealing with structured data, how does Oracle handle and store unstructured data? Lob (Large object) is an oracle designed to handle semi-structured and unstructured data, a

oracle| Data | database * TODO to change the template for this generated file, go to the * Windows-Preferences-Java-code styles-code templates */ Package person.fane.test; Import java.sql.*; /** * A JDBC test application for Oracle * @author Fane *

3.4.1 the use of "SQL Plus" (1) The "registration" interface as shown in Figure 3.12. (2) The SQL Plus interface, as shown in Figure 3.13, appears after the database has been successfully connected. (3) Input query statement "SELECT * from

6 ways to 3.6.1 server startup Oracle 9i database servers have 6 ways to boot, as shown in Table 3.3. Table 3.3 Server Startup 6 ways features normal boot start loading and opening the database, the user can

1. Create a user, assign the Create permission to the user, and allocate the table space:Create user Scott identified by Tiger;Grant create session to Scott; Grant CREATE table to Scott; Alter user Scott default tablespace users; Alter user Scott

Security Policies for Oracle databases Oracle is a relational database management system, which has powerful function and excellent performance, and occupies an important position in today's large database management system. In the MIS system

Two data tables to create 1. Postgraduate Information table Table name: Scott.student. The table structure is shown in table 7.6. 3. Relationship of two data tables The Master code "director_id" of the Tutor Information table (scott.director) is

Author: Lu YangLearning Oracle, it's best to understand Oracle's framework first. This has a holistic understanding of Oracle and has a farsighted role 1. Physical structure (composed of control file, data file, redo log file, parameter file,

These functions allow you to access the Oracle8 and Oracle7 databases. He uses the Oracle8 point interface (OCI8). Using this extension module, you need to Oracle8 the client library file. This expansion module is smoother than a standard Oracle

LOB (Large Object) in Oracle Oracle can store very large data (possibly 4GB) so that it can be written to the database by serializing a file or any other object into a byte output stream (OutputStream) and then using the byte input stream (

Objective: To resolve the system migration from Oracle to Sybase. Command Overview: C:\Documents and Settings\newuesr>isql-help Syntax Error in '-help '. Usage:isql [-b] [-e] [-f] [-p] [-n] [-v] [-X] [-y] [-Q] [-A Display_charset] [-A